/*
 * Copyright (c) 2014-2022 Stream.io Inc. All rights reserved.
 *
 * Licensed under the Stream License;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    https://github.com/GetStream/stream-chat-android/blob/main/LICENSE
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.getstream.chat.android.ui.common.utils.extensions

import io.getstream.chat.android.client.ChatClient
import io.getstream.chat.android.models.Channel

public val Channel.initials: String
    get() = name.initials()

public fun Channel.isDirectMessaging(): Boolean {
    return members.size == 2 && includesCurrentUser()
}

private fun Channel.includesCurrentUser(): Boolean {
    val currentUserId = ChatClient.instance().clientState.user.value?.id ?: return false
    return members.any { it.user.id == currentUserId }
}
